The size of the curtains __________irregular. (Is , are) Share with your friends Share 1 Sneha answered this Answer : is 0 View Full Answer Subrataa Mahapatra answered this Can i get the reason for this answer . 2 Kanika Goyal.. answered this Bcoz here phrase is used ... and in these type of sentences u need to find actual subject that is "size" ...not "curtains" 2 Nandini answered this The size of curtain is irregular 1